Oklahoma State's Marcus Smart, previewing NBA-level play this week as the only collegian to participate in a USA Basketball minicamp, says he won't pass on the pros again as he did earlier this year when he decided to return to the Cowboys.

"It's safe to say that if, by the grace of God, I'm healthy and everything, this will be my last year at Oklahoma State," Smart said Tuesday in Las Vegas after practice, according to Yahoo! Sports. "Nothing will change my mind on that."

Smart, 19, was seen by many as a lock to be selected in the top five of this year's NBA draft after a freshman season in which the 6-foot-4 guard averaged 15.4 points, 5.8 rebounds and 4.2 assists a game.